Roberto Di Matteo rages at referee in Chelsea draw

Oscar lit up Chelsea with a flash of Brazilian brilliance but Roberto Di Matteo left Stamford Bridge in a dark mood after his team allowed Juventus to take a point.

Di Matteo fumed at referee Pedro Proenca for rejecting a strong penalty appeal and failing to punish Leonardo Bonucci for a nasty challenge which injured Oscar.

The Chelsea boss also criticised his players for surrendering the two-goal lead they secured with goals from their new Brazilian playmaker, the second of which was an absolute gem.

Denied: Chelsea's Eden Hazard appeared to be fouled by Andrea Barzagli

'We feel disappointed and a little
but deflated,' said Di Matteo. 'We found ourselves in a fantastic
position to win this game and came away only with a draw.

'We should have dealt with the
equaliser a little bit better. There was no pressure on the ball and it
was pretty difficult to play offside. We lost possession just beforehand
and we should have reacted much quicker than we did.

'We played against a good team and
they are always dangerous. They have a lot of quality in their team but
we feel disappointed because we should have closed the game and brought
the win home.'

Arturo Vidal pulled one back for Juventus before
half-time and substitute Fabio Quagliarella levelled 10 minutes from
time in this Group E opener.

Di Matteo hit out at Proenca for
missing the penalty claim and for overlooking the Bonucci foul and urged
UEFA to examine the tapes.

'It was a bad tackle and he had to
come off unfortunately,' said the Chelsea manager. 'It's his ankle and
we will have to assess him. The referee didn't do much about many
challenges. The match is finished for us but if UEFA has a look, then
good.

As for the second-half challenge on
Eden Hazard by Andrea Barzagli, Di Matteo said: 'It was a penalty. He
got pushed and it was the second game in a row that the referee has not
seen it.'

Sublime: Oscar scored twice on his first start for Chelsea as he showed his huge potential

Opener: Oscar celebrates his first goal for Chelsea against Juventus at Stamford Bridge

But he was delighted with the impact of Oscar on his first start for the club.

'It was a great debut,' said Di
Matteo. 'I thought it was the right thing to start him. He did a great
job tactically, scored two goals and one of them was a wonderful goal.

'We need a bit of time to work with
him. I thought his performance, with the information we've given him,
was good. It's great to see we have a player like this in our ranks.

'He is a big talent. He's got a bit
of everything. We shouldn't forget he's still a young man but he's
already quite established, also in the national team.'

Oscar was thrilled with his flying start and does not expect the ankle injury to keep him out for long.

'It was just a kick,' said the 21-year-old Brazilian, signed for 25million from Internacional in the summer.

'It was sore but I will be fine in the morning.

I am so very happy to score on my debut. The goals were amazing and I am very proud of them.'

The second goal involved an exquisite
piece of control which spun the ball to one side on Andrea Pirlo as he
skipped around the Italian midfielder and curled the ball into the top
corner from 20 yards.

'I just tried to make the first touch to the other side of Pirlo and then to shoot,' said Oscar.

'It worked and I'm happy. I don't always score goals like that. Sometimes it happens – but not every time.'